@article{ref1,
title="Deaths from medicaments in relation to epidemic drug addiction",
journal="International journal of epidemiology",
year="1973",
author="Ipsen, J. and Cuskey, W. R. and Premkumar, T.",
volume="2",
number="3",
pages="329-337",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0300-5771",
doi="",
url="http://dx.doi.org/"
}